Question

The radiations given out by radioactive elements:

विकल्प

• affect photographic plates

• ionise the gases

• are affected by electrostatic and magnetic fields

• all of these

Answer 1

All of these

Explanation:

Radiations given out by radioactive elements affect photographic plates, ionise gases through which they pass, and are deflected by electrostatic and magnetic fields. Therefore all the given statements are true.